搜索结果: 1-15 共查到“caffeine”相关记录52条 . 查询时间(0.125 秒)
Metabolite Profiling and Transcriptome Analysis Revealed the Conserved Transcriptional Regulation Mechanism of Caffeine Biosynthesis in Tea and Coffee Plants
茶叶中 咖啡因 NMT 生物合成
2023/4/19
Caffeine is a characteristic bioactive compound in tea and coffee plants, which is synthesized and accumulated extensively in leaves and seeds. However, little is known about the regulatory mechanism ...
Tea catechin and caffeine activate brown adipose tissue and increase cold-induced thermogenic capacity in humans
catechin brown adipose tissue energy expenditure old-induced thermogenesis healthy humans
2018/11/13
Background: The thermogenic effects of green tea catechin have been repeatedly reported, but their mechanisms are poorly understood.
Spinal Cord Injury Level Influences Acute Plasma Caffeine Responses
ADRENALINE NORADRENALINE FREE FATTY ACID ERGOGENIC WHEELCHAIR ATHLETES
2018/4/24
Purpose This study aimed to investigate the absorption curve and acute effects of caffeine at rest in individuals with no spinal cord injury (SCI), paraplegia (PARA), and tetraplegia (TETRA).
Methods...
A prospective study of caffeine and coffee intake and premenstrual syndrome
premenstrual syndrome women’s health caffeine coffee tea
2018/12/13
Background: Clinically significant premenstrual syndrome (PMS) affects 15–20% of premenopausal women, substantially reducing quality of life. Women with PMS often are counseled to minimize caffeine in...
Caffeine intake increases the rate of bone loss in elderly women and interacts with vitamin D receptor genotypes
bone mineral density elderly women Caffeine
2016/6/14
Our goals were 1) to compare in both a crosssectional
study and a 3-y longitudinal study the bone mineral
density (BMD) of postmenopausal women consuming high or
low amounts of caffeine and 2) to s...
Dietary caffeine acutely increases urinary calcium loss (1),
and these losses are not entirely compensated for in the 24 h after
caffeine consumption (2). Overall, the evidence indicates that
young...
Efficacy of a green tea extract rich in catechin polyphenols and caffeine in increasing 24-h energy expenditure and fat oxidation in humans
Obesity thermogenesis catechins polyphenols
2016/6/2
Current interest in the role of functional foods in
weight control has focused on plant ingredients capable of interfering
with the sympathoadrenal system.
Serum caffeine and paraxanthine concentrations and menstrual cycle function: correlations with beverage intakes and associations with race, reproductive hormones, and anovulation in the BioCycle Study
anovulation biological markers caffeine menstrual cycle 1,7-dimethylxanthine
2018/12/3
Background: Clinicians often recommend limiting caffeine intake while attempting to conceive; however, few studies have evaluated the associations between caffeine exposure and menstrual cycle functio...
Muscle Pain as a Regulator of Cycling Intensity: Effect of Caffeine Ingestion
EXERCISE PERRORMANCE ADENOSINE ANTAGONISM
2017/4/13
Caffeine ingestion improves endurance time trial performance. However, the ergogenic mechanism of action remains unresolved. One potential explanation for caffeine’s performance-enhancing effect is an...
Effect of Caffeine on Golf Performance and Fatigue during a Competitive Tournament
NUTRITION GOLFERS ENERGY ACCURACY
2017/4/13
Purpose: This study aimed to determine the effect of a caffeine-containing supplement on golf-specific performance and fatigue during a 36-hole competitive golf tournament.
Methods: Twelve male golfe...
Coffee and caffeine consumption and the risk of hypertension in postmenopausal women
blood pressure caffeinated coffee caffeine decaffeinated coffee hypertension
2018/11/23
Background: The associations of coffee and caffeine intakes with the risk of incident hypertension remain controversial.
The effects of supplementation with P-Synephrine alone and in combination with caffeine on resistance exercise performance
supplementation with P-Synephrine alone caffeine resistance exercise performance
2015/9/24
Little is known concerning the potential ergogenic effects of p-synephrine supplementation. Therefore, the purpose of the present study was to examine the effects of supplementation with p-synephrine ...
Effects of Time-Release Caffeine Containing Supplement on Metabolic Rate, Glycerol Concentration and Performance
Caffeine bioavailability energy multiple object tracking
2015/8/28
This study compared caffeine pharmacokinetics, glycerol concentrations, metabolic rate, and performance measures following
ingestion of a time-release caffeine containing supplement (TRCAF) versus a...
Erratum to:The influence of a CYP1A2 polymorphism on the ergogenic effects of caffeine
CYP1A2 polymorphism ergogenic caffeine
2015/7/30
Following publication of this article [1], we recently noticed that two subjects in this study were not assigned to the correct genetic groups. One of the AA homozygotes was incorrectly entered as a C...
Ergogenic effects of caffeine and sodium bicarbonate supplementation on intermittent exercise performance preceded by intense arm cranking exercise
Fatigue Blood lactate Rating of perceived exertion
2015/7/30
Caffeine and sodium bicarbonate ingestion have been suggested to improve high-intensity intermittent exercise, but it is unclear if these ergogenic substances affect performance under provoked metabol...